#dropContainer {
    background-color: transparent;
    position: absolute;
    top: 0px;
    width: 320px;
    height: 480px;
    z-index: 1;
    overflow: hidden;
}
#dropContainer > div {
    position: absolute;
    width: 6px;
    height: 12px;
    -webkit-animation-iteration-count: infinite, infinite;
    -webkit-animation-direction: normal, normal;
    -webkit-animation-timing-function: linear, ease-in;
}
#dropContainer > div > img {
     position: absolute;
     width: 6px;
     height: 12px;
     -webkit-animation-iteration-count: infinite;
     -webkit-animation-direction: alternate;
     -webkit-animation-timing-function: ease-in-out;
     -webkit-transform-origin: 50% -100%;
}
@-webkit-keyframes drop {
    0%	 { -webkit-transform: translate(0px, -50px); }
    100% { -webkit-transform: translate(0px, 600px); }
}
